1 Features
• ASIL-D Functional Safety-Compliant
– Development target for Functional Safety
applications
– Documentation to aid ISO 26262 system design
– Systematic capability up to ASIL D
– Hardware capability up to ASIL D
• AEC-Q100 qualified with the following results:
– Device temperature grade 1: –40°C to +125°C
• Monitor state-of-the art SOCs
– ±6mV threshold accuracy (–40°C to +125°C)
– Input voltage range: 2.5V to 5.5V
– Undervoltage lockout (UVLO): 2.48V
– Low standby quiescent current: 200μA
– 6 channels with 2 remote sense (TPS389006-
Q1)
– 6 channels with 2 remote sense and Reset
output (TPS389R06-Q1)
– 8 channels (TPS389008-Q1)
– Fixed window threshold levels
• 5mV steps from 0.2V to 1.475V
• 20mV steps from 0.8V to 5.5V
• Miniature solution and minimal component cost
– 3mm x 3mm QFN package
– Adjustable glitch immunity via I2C
– User adjustable voltage threshold levels via I2C
• Designed for safety applications
– Active-low open-drain NIRQ output
– Active-low open-drain NRST output
(TPS389R0-Q1)
– Built-in 8-bit ADC for real-time voltage readouts
– Cyclic Redundancy Checking (CRC)
– Packet Error Checking (PEC)
– Sequence and fault logging
• Sync function for rail tagging
– Connect with a multichannel sequencer for
sequencing functionality

2 Applications
• Advanced driver assistance system (ADAS)
• Sensor fusion

3 Description
The TPS389006/08-Q1 device is an ASIL-D compliant
six/eight-channel window supervisor IC with two
remote sense pins (six channel version) available in a
16-pin 3mm x 3mm QFN package. The TPS389R06-
Q1 device is a six channel window supervisor IC with
2 remote sense pins and a Reset output. This high
accuracy multichannel voltage supervisor is designed
for systems that operate on low-voltage supply rails
and have narrow margin supply tolerances.
Remote sense pins enable a highly accurate voltage
measurement on the high current core rail by
accounting for voltage drop across PCB traces. I2C
functionality gives flexibility in selecting thresholds,
reset delays, glitch filters, and pin functionality. The
internal glitch immunity and noise filters eliminate
the need for external RC components to reduce
false resets resulting from power transients. In
addition, device does not require any external
resistors for setting overvoltage and undervoltage
reset thresholds, which further optimizes overall
accuracy, cost, size, and improves reliability for safety
systems.
This device offers CRC error checking, sequence
logging during turn ON or turn OFF, and a builtin
ADC for voltage readouts to provide redundant
error checking. In addition, TPS389006 offers a sync
feature for tagging the rails as the device powers
up. The TPS389006 device also pairs with TI's powersupply
sequencer TPS38700 to enable proper poweron
sequence in addition to voltage monitoring for
SIL-3 level compliance.